diff -Naur acpica-unix2-20150515.orig/source/components/disassembler/dmcstyle.c acpica-unix2-20150515/source/components/disassembler/dmcstyle.c

--- acpica-unix2-20150515.orig/source/components/disassembler/dmcstyle.c	2015-06-01 14:32:51.769218887 -0600

+++ acpica-unix2-20150515/source/components/disassembler/dmcstyle.c	2015-06-01 14:37:38.973898839 -0600

@@ -407,7 +407,7 @@

         {

             AcpiDmPromoteTarget (Op, Target);

-            if (!Target->Common.OperatorSymbol)

+            if (Target && !Target->Common.OperatorSymbol)

             {

                 Target->Common.OperatorSymbol = " = ";

             }

@@ -425,7 +425,7 @@

         Target = Child1->Common.Next;

         AcpiDmPromoteTarget (Op, Target);

-        if (!Target->Common.OperatorSymbol)

+        if (Target && !Target->Common.OperatorSymbol)

         {

             Target->Common.OperatorSymbol = " = ";

         }

@@ -446,7 +446,10 @@

             /* Valid target, not a placeholder */

             AcpiDmPromoteTarget (Op, Target);

-            Target->Common.OperatorSymbol = " = ~";

+	    if (Target)

+	    {

+            	Target->Common.OperatorSymbol = " = ~";

+	    }

         }

         else

         {